| Henry Gordon Clappison | |
| Birth Date: | 1 October 1898 |
| Birth Place: | Hamilton, Ontario, Canada |
| Death Place: | Toronto, Ontario, Canada |
| Nickname: | Harry |
| Allegiance: | Canada United Kingdom |
| Branch: | Canadian Expeditionary Force Royal Air Force |
| Serviceyears: | 1917 - 1919 |
| Rank: | Captain |
| Unit: | 91st Highlander Regiment No. 204 Squadron RAF |
| Awards: | Belgian Croix de Guerre |
Captain Henry Gordon Clappison (October 1, 1898 - May 15, 1977) was a World War I flying ace credited with six aerial victories.[1]
Clappison's run of victories came late in World War I. He was assigned to 204 Squadron in August 1918 to pilot a Sopwith Camel. He set afire a Fokker D.VII on 20 September 1918 and ran up five more wins over D.VIIs by November 1. His final tally was two destroyed, four driven down out of control.[2]
Above the Trenches: a Complete Record of the Fighter Aces and Units of the British Empire Air Forces 1915-1920. Christopher F. Shores, Norman L. R. Franks, Russell Guest. Grub Street, 1990., .